Produced only in accordance with strict purity standards formulated by an 18th century European Parliament that guaranteed the absence of toxic distillation byproducts, the phrase “London Dry” on a bottle doesn't refer to any specific place of origin, age or ingredients. To be called a London Dry Gin, the base spirit must be distilled in a column still to at minimum, 70% abv. Natural botanicals can be added to the resulting neutral spirit only through re-distillation. Anything added after distillation other than water and a tiny amount of sugar disqualifies a Gin from the title, London Dry.